Vulcanizer



Patented Nov. 11, 1924.

JAMES T. SEELYE AND LUTHER IR. JACKSON, 0F PUEBLO, COLOO.

vULcANIzEn.

Application Iled February 5, 1923. Serial No. 617,079. 'l

To all 'whom t may concer/L:

Be it known that we,JAMEs T. SEELYE and LUTHER R. JACKSON, citizens of the United States, residing at Pueblo, in the county of lueblo and Statev of Colorado, have invented certain new and useful Improvements in Vulcanizers; and we do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains, to make and use the same.

Our `invention relates to improvements in vulcanizers and the present disclosure thereof is directed to one designed primarily for vulcanizing tire tubes, one object of the in vention being to provide a vulcanizer which may be eiitectively operated from the battery current of the usual automobile.`

Another object of the invention is to pr vide for automatically moving the electrical heating element away from the work when the vulcanizer has reached a predetermined degree of heat, thus preventing burning of the tube or the patch being applied thereto. A still further object is to provide a vul canizer which may be'inexpensively manu factured and marketed, yet one which will' be highly eicient and reliable and may be operated with extreme ease.'

With the foregoing in view, the invention resides ,in the novel subject matter hereinafter described and claimed, the description being supplemented by the accompanying drawing.

Figure 1 is a vertical section showing a vulcanizer constructed in accordance with our invention.

Figures 2 and 3 are horizontal sectional piews, as indicated by lines 2 2 and 3-3 of Inthe drawings abo-ve' brieiiy described, the numeral 1 designates a C-clamp whose lower arm 2 is Hat on its lower surface as indicated at 3 to rest upon a support, the upper side of this arm being provided with Y an integral plate-like portion 4 which extends forwardly from said arm and also extends laterally in opposite directions therefrom, being preferably in the form of a circular disk. The forwardly projecting portion of this disk is provided with an integral depending flange 5 which extends transversely with respect to the arm 2 and is of a length to project oppositely beyond this arm. The lower edge of the lange 5 is in the same plane with the surface 3 of the arm 2, whereby they may both rest upon the" same support to effectively hold the clamp against tilting.`

Above the disk 4, is a circular plate 6 having a depending rim iange 7 which contacts with said disk, said disk, plate and flange, cto-operating in forming a hollow basel which contains a heating means described below. In the preferred form of construction, the upper side of the plat'e6 is somewhat concave as indicated at 8 to taper the vulcanized patch to a `feather edge and the lower side of said plate is provided with a boss 9 into which the upper ,end of a screw 10 is threaded, this crew being passed loosely through an opening in the arm 2 and having its head countersunk in the lower -slde of said arm 2. An insulating washer 11 is interposed between the screw head and the arm 2 and a disk of insulation v12 which rests upon 'the disk 4, is positioned be. tween this'disk and the boss 9, whereby to prevent excessive'radiation of heat from the plate 6 to the lower portion of the clamp; Also, as the insulating washer 11 is yieldable to some extent, it permits the necessary slight movement of the screw under temperature changes.

lAny Asuitable heating element may be provided within the --hollow base for the urpose of heating the top plate 6 thereof. We

prefer however to employ a suitably shaped resistancelwire 13 mounted between disks of insulation 14 and having flexible terminals secured to a pair of binding posts 15 which pass through and areinsulated from the liange 7, the inner side of this flange also l bein ing 'ning as indicated at 16. The current supply wires 17 which lead to the b-inding posts 15 may well pass through an opening 18 in the lower portion of the clamp 1.

For supporting the resistance wire 18 and its carrying disks 14, we have shown a plurality of inclined arms 19 having their lower ends secured upon the-sheet of insulation 12, while their upper ends contact with and support the heating element formed by said parts 13 and 14. 4These arms are formed of any desired materials having non-uniform coeliicients of expansion, for the purpose of causing said arms to bend downwardly when a predetermined degree of heat is reached.

lt will thus be seen that when the device has reached a predetermined temperature, the arms will bow downwardly and will thus preferably provided with an insulat' lowerfthe heating element away from the plate 6, preventing burning of the patch or| the work.-

While any desired means may be employed for clamping the work against the plate 6, we prefer to employ the construction shown. A vertical clamping screw 20 is threaded through the upper arm of the clamp l and has its lower end swiveled in a central opening in a flat arched spring 21, the ends of this spring being extended outwardly as indicated at 22 and having slots 23. The ends 22 rest upon a clamping plate 24C and rivets or the like 25 pass through this clamping plate and are received in the slots 23 to connect the spring with the plate. By employing this construction, the work may be yieldably held in the desired manner. It will be seen that as the spring 21 is sprung downwardly by tightening of the screw 20, its ends will slide outwardly upon the clamping plate 24:, this being permitted by the slot and stud connection between said spring' and plate.

f F rom the foregoing, it will be seen that we have provided a simple and inexpensive device'by means of which tubes and other work may be eiectively vulcanized without burning, particular attention being directed to the fact that the device may be well carried in the tool box or other appropriate part of an automobile and may be connected at will with one of the usual bulb sockets, for using current from the automobile battery or the purpose of operating the vulcanizer, it being understood that the current supply wires for the latter are equipped with a suitable plug for reception in the socket. We may further point out however that if desired, the plug may be dispensed with and the current supply wires suitably connected with the terminals oit the battery, or when the device is used in a shop, other appropriate current supply means may be employed.

We may further point out that while the thermostatic arms have been shown for moving the heating element away from the top plate of the hollow base, a stationary heating element might be employed in this. base, in which instance, it would be preferable to use any desired thermostatie cutoutfor the vcurrent supply, operative when the vulcanizer has obtained a predetermined degree of heat.

We claim:

1. A vulcanizer comprising a plate and means for clamping the work against the same, a heating element movable toward said plate, and thermostatic means carrying said heating element and active under a predetermined degree of heat to move sai-.l element away from said plate. 4

2. vulcanizer comprising a hollow base and means' for clamping the work against one side thereof, a heating element in said base movable toward and from said side thereof, and thermostatic means carrying said heating element and active. under a predetermined degree of heat to effect move nient of said heating element awayfrom said side of the base.

3. A vulcanizer comprising a! plate and means for clamping the work against the same, a heating element movable toward and from said plate, and a plurality ot' arms longitudinally bendable under a predetermined degree of heat, one end ot said arms supporting said heating element while the. other ends of said arms are stationarih7 mounted. l

4t. A vulcanizer comprising a hollow base and means for. clamping the work against the upper side thereof, a plurality of radially disposed inclinedy arms secured at their lower ends to the upper face of the bottom of said base, said arms being downwardlyl bendable under a predetermined de gree of heat, and a heating element in said base' supported by the upper ends of said arms. i

lin testimony whereof we have hereunto alixed our signatures.

JAMES T. SEELYE.

LUTHER R. JACKSN, 

